Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52M01SE00050

Record: MDI52M01SE00050

General

Mineral Record Identification
Record Name(s) Lake Rowan #10 - 1934, Rowan Gold Mines - 1974
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Mar-12
Date Last Modified 2022-Sep-28
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Todd

Latitude: 51° 3' 56.03"    Longitude: -94° 7' 44.63"

UTM Zone: 15    Easting: 420886.76   Northing: 5657722.11    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52M01SE

Point Location Description: DDH and trenches on north boundary of claim 10000 on OGS map M2406

Location Method: Data Compilation



Exploration History

1934: Lake Rowan Gold Mines Limited carried out trenching. 1945: Lake Rowan Mines, Limited. 1946: Lake Rowan Mines drilled Five diamond drill holes totalling about 780 m. 1951: Rowan Consolidated Mines Limited. 1974: Rowan Gold Mines Limited (subsidiary of Dickenson Mines Limited).


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
RL 1935-47 TODD #10,30

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Red Lake

Geological Age: Archean  

Metamorphism Type: Regional

Metamorphism Grade: Amphibolite



Geology Comments

Dec 07, 2005 (K R Kettles) - GEOLOGICAL DESCRIPTION: Four parallel structures have been uncovered by trenching in the northern and eastern parts of this claim. These four sheared zones occur in intermediate tuff about 30 to 100 m south of large lenses of felsic volcanic rocks. The shears strike about N80 deg.W and dip steeply. The wallrocks have been altered to carbonate and chlorite and three of these sheared zones (#9,10,11,Bishop 1934) contain quartz ranging in width from 1 cm to 30 cm. The quartz is mineralized with pyrrhotite, pyrite, chalcopyrite, galena and sphalerite, plus gold; therefore these occurrences are quite similar in alteration and mineralogy to TD 13. The fourth prospect (#12) is a sheared and brecciated zone in the intermediate tuff that is well impregnated with pyrite but from which no gold was reported. DEPOSIT DESCRIPTION: Three parallel, silicified shear zones contain auriferous quartz up to 30 cm wide. Vein No. 10 was traced 100 m along its strike.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Quartz Host
Intermediate Tuff 2 Tuff Adjacent

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
2ChalcopyriteEconomicOre
3GalenaEconomicOre
4PyriteEconomicOre
5PyrrhotiteEconomicOre
6SphaleriteEconomicOre
1QuartzEconomicGangue
ChloriteAlterationHydrothermal1StrongReplacement
CarbonateAlterationHydrothermal2StrongReplacement

Mineralization Comments

Dec 07, 2005 (K R Kettles) - MDI1 DATA: GRADE 1946 DDH: 0.095 OPT AU/ 2.13 M ON N BDRY OF KRL 10000 a diamon drill hole interscted 0.095 oz/ton (3.257 g/tonne) Au over 2.13 m on the north boundary of KRL 10000 (Lake Rowan Mines Limited, 1947).



Alteration Comments

Dec 07, 2005 (K R Kettles) - The wallrocks are altered to carbonate and chlorite adjacent to the quartz veins.




Mineral Record Details

References

Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2

Publication Number: OFR5558 Page: 647-648  Date: 1987

Author: Durocher M.E., Burchell P.S., Andrews A.J.

Publisher Name: Ontario Geological Survey

Location:


File - Red Lake Resident Geologists Files Todd 10

Publication Number: RGF 1934 Date: 1934

Author: Bishop, E.G.

Publisher Name:

Location: Red Lake RGP


File - Red Lake Resident Geologists Files Todd 30

Publication Number: RGF 1947 Date: 1947

Author: Lake Rowan Mines Limited

Publisher Name:

Location: Red Lake RGP


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For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office